The liquid nitrogen canister is a vacuum insulated container. Its heat preservation comes from the vacuum, and the vacuum is located between the inner and outer tanks, which is drawn out by instruments. Therefore, the manufacturer always emphasizes not to bump the liquid nitrogen canister, so as to avoid the impact of the outer tank from sagging and inconsistent internal and external pressure. vacuum.
At the same time, it is emphasized that do not touch the vacuum port, especially do not sprinkle liquid nitrogen on the vacuum port, and equip the vacuum port with a vacuum cap to prevent users from accidentally touching it, because it is a vacuum port, which will affect the insulation of the entire jar. Effect.
If it is really accidentally destroyed, can the liquid nitrogen tank still be used?
There is a high probability that it is impossible!
Unless you mistook the vacuum cap for a vacuum port, it doesn’t matter if the vacuum cap falls off or is damaged! But if the vacuum port covered by the vacuum cap is damaged, there will be gaps in the vacuum insulation film covering it, and the vacuum between the inner and outer tanks will disappear immediately, and the heat preservation effect will be lost, and the liquid nitrogen canister will be completely scrapped.
Moreover, once this kind of vacuum port is damaged, it cannot be repaired, and the only option is to scrap it and buy a new one!
Therefore, when you use the liquid nitrogen canister, you must protect the vacuum port well, and don’t take off its protective cap at ordinary times!